EP 4015994 A1 20220622 - LASER-BASED LEVELLING SYSTEM
Title (en)
LASER-BASED LEVELLING SYSTEM
Title (de)
LASERBASIERTES NIVELLIERSYSTEM
Title (fr)
SYSTÈME DE NIVELLEMENT LASER
Publication
Application
Priority
EP 20216166 A 20201221
Abstract (en)
The invention relates to a method for deriving alignment information of a surface of a structure, the alignment information comprising a deviation of an alignment of the surface with respect to a light plane. The method comprises detecting at a plurality of light-receiver units, an impingement position of the light plane on a photo sensor that has a known relative position in relation to the surface, determining, for each light-receiver unit and based on the impingement position and the known relative position, a crossing position value of the light plane with respect to the surface, performing a combined analysis of the crossing position values from the plurality of light-receiver units to derive alignment information comprising the deviation of the alignment of the surface of the structure relative to the light plane, and displaying the alignment information to a user. The invention also relates to computer programme product, a light-receiver unit and a system comprising a plurality of light-receiver units for performing the method.
IPC 8 full level
G01C 15/00 (2006.01)
CPC (source: CN EP US)
G01B 11/272 (2013.01 - US); G01C 15/002 (2013.01 - EP); G01C 15/006 (2013.01 - US); G01S 7/481 (2013.01 - CN); G01S 17/08 (2013.01 - CN); H04B 1/7163 (2013.01 - US); H04W 4/80 (2018.02 - US); H04W 76/10 (2018.02 - US)
Citation (applicant)
- EP 2930465 A1 20151014 - BLACK & DECKER INC [US]
- EP 3425334 A1 20190109 - LEICA GEOSYSTEMS AG [CH]
- EP 1192484 A1 20020403 - TOOLZ LTD [CN]
- US 2007271800 A1 20071129 - HERSEY WILLIAM [US], et al
- WO 03058322 A1 20030717 - LEVELITE TECHNOLOGY INC [US]
- EP 1519147 A1 20050330 - HILTI AG [LI]
- US 6327090 B1 20011204 - RANDO JOSEPH F [US], et al
- CN 204963863 U 20160113 - CHANGZHOU HUADA KEJIE OPTO-ELECTRO INSTR CO LTD
- EP 3425334 A1 20190109 - LEICA GEOSYSTEMS AG [CH]
- US 4830489 A 19890516 - CAIN GARY L [US], et al
- WO 2013135891 A1 20130919 - LEICA GEOSYSTEMS AG [CH]
Citation (search report)
- [A] US 2018335316 A1 20181122 - LUKIC SASHA [CH]
- [IA] DE 102010043359 A1 20120510 - BOSCH GMBH ROBERT [DE]
- [A] WO 2017066836 A1 20170427 - CRAMER DAVID [AU], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 4015994 A1 20220622; CN 114646970 A 20220621; US 2022196403 A1 20220623
DOCDB simple family (application)
EP 20216166 A 20201221; CN 202111533835 A 20211215; US 202117558055 A 20211221